在阿拉贡石中封装微塑料:效率,检测和潜在环境影响的洞察力
Nives Matijaković Mlinarić1, Katarina Marušić1, Antun Lovro Brkić2
1Division of Materials Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia. jasminka.kontrec@irb.hr.
Environmental science. Processes & impacts
|April 16, 2024
概括
海洋环境中的微塑料可以被封装成珊瑚骨架. 暴露于溶解的有机物质,如酸,改变了微塑料封装,降低了阿拉戈尼特的机械强度,影响了海洋生物.
科学领域:
- 海洋生物学 海洋生物学
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- 塑料污染,特别是微塑料,对水生生态系统构成威胁.
- 微塑料可以被纳入海洋生物的碳酸骨,如珊瑚,软体动物和类动物.
- 微塑料对阿拉戈尼特沉和珊瑚骨架的机械性能的影响在很大程度上是未知的.
研究的目的:
- 为了研究聚钢 (PS) 和聚乙烯 (PE) 微塑料的封装成沉的阿拉戈尼特.
- 为了确定溶解的有机物 (湿酸) 对微塑料封装成阿拉戈尼特的影响.
- 评估微塑料封装如何影响阿拉贡岩的机械性能.
主要方法:
- 在人造海水中进行了阿拉戈尼特沉实验.
- 聚钢和聚乙烯微球,无论是未经处理的还是用酸处理的,都是在阿拉贡石沉过程中引入的.
- 测量了得到的阿拉贡石样本的机械性能 (硬度和缩模量).
主要成果:
- 聚乙烯 (PE) 和酸处理的PE (PE-HA) 微球的封装效率高于聚烯 (PS) 和酸处理的PS (PS-HA) 微球.
- 微塑料封装改变了阿拉贡石的机械性能.
- 观察到硬度和缩模量下降,最显著的减少发生在PE-HA微球上.
结论:
- 微塑料被纳入阿拉贡石可以对其机械完整性产生负面影响.
- 溶解的有机物可以影响微塑料封装的程度.
- 这些发现引发了对珊瑚骨和其他面临微塑料污染的化海洋生物的结构稳定性的担忧.
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